strategy-check

strategy-check is a command for Claude Code from phuryn/pm-brain. It costs 0 tokens per session (981 once invoked), scanned A, original, MIT.

A read-only comparison between recent decisions, newly collected information, active hypotheses, and a project strategy document. It identifies places where current work may no longer match agreed priorities or exclusions.

In plain words
What is it for?
It is for reviewing recent decisions, hypotheses, market research, customer insights, and competitor changes against the project strategy.
Why use it?
It surfaces strategic conflicts for a product manager to resolve instead of allowing changes in evidence or decisions to go unnoticed.

Command for Claude Code

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add commands/phuryn/pm-brain/strategy-check
Clone the repo
git clone --depth 1 https://github.com/phuryn/pm-brain

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for strategy-check

README.md
[![agentmods](https://agentmods.dev/badge/commands/phuryn/pm-brain/strategy-check.svg)](https://agentmods.dev/commands/phuryn/pm-brain/strategy-check)
Your own site
<a href="https://agentmods.dev/commands/phuryn/pm-brain/strategy-check"><img src="https://agentmods.dev/badge/commands/phuryn/pm-brain/strategy-check.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 981 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00000 $0.00981
Opus 5 $0.00000 $0.00491
Sonnet 5 $0.00000 $0.00196
Haiku 4.5 $0.00000 $0.00098

Measured 4d ago against content hash 462ca44d3699, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

strategy-check scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 4d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.claude/skills/pm-brain/scaffold/.claude/commands/strategy-check.md · 56 lines

How it starts

The opening of the file, as written. The whole thing — 56 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/strategy-check

Drift check between recent decisions / ingestions / active hypotheses and knowledge/strategy.md. Read-only synthesis. Surfaces tensions for the PM to resolve; does NOT silently edit strategy.

Input

None for a full sweep, or an optional scope:

  • /strategy-check decisions — last ~10 decisions vs. strategy priorities and non-goals
  • /strategy-check hypotheses — active hypotheses vs. strategy priorities and non-goals
  • /strategy-check ingestion — last ~14 days of ingestion vs. strategy (new market shifts, persona evidence, recurring customer signal)

Loads

  • knowledge/strategy.md — priorities, non-goals, north-star, current tensions (the anchor — every drift call traces back to a specific clause)
  • decisions/INDEX.md and the last ~10 decision files under decisions/
  • hypotheses/INDEX.md and all hypotheses with status: active or status: promoted
  • Last ~14 days of ingestion/ (interviews, meetings, market intel, adhoc)
  • knowledge/market/landscape.md and any knowledge/market/competitors/<slug>.md flagged as moved recently
  • knowledge/users/insights.md — recurring themes that may pressure a priority or non-goal

Updates

/strategy-check is read-only by default. It does NOT edit knowledge/strategy.md (per CLAUDE.md "Ask the PM before changing strategy.md").

What it MAY write:

  • maintenance/log/<date>-strategy-check.md — the dated drift report
  • Drafts (not committed) for any proposed strategy.md § Tensions entry that crosses the recurring + high-confidence + decision-relevant bar from CLAUDE.md § Strategy tension threshold

What it MUST NOT do:

  • Silently rewrite priorities, non-goals, or north-star
  • Promote a one-off market signal or a single interview into a strategy tension (CLAUDE.md § Strategy tension threshold rejects one-off anecdotes)
  • Resolve an existing tension on its own — surface the new evidence, let the PM decide

Hard constraints

  • Cite the specific strategy clause for every drift call. "Decision X drifts from strategy" without naming WHICH priority or non-goal is noise. Format: Decision 2026-05-12-ship-weekly-digest contradicts strategy § Non-goals: "no proactive notifications until Q4".
  • Cite the specific evidence for every drift call. Provenance tag per the enum in hypotheses/_SCHEMA.md. A drift claim without a tagged source is itself orphan evidence.
  • Apply the tension threshold honestly. Do not draft a new strategy.md § Tensions entry unless the signal is recurring (≥2 independent sources), high-confidence (survives the correlational-vs-causal check in CLAUDE.md), AND decision-relevant. One-off anecdotes get logged in the drift report under "watch items" — not promoted.
  • Distinguish drift from divergence. A decision that explicitly overrides a strategy clause (with a documented reason) is divergence, not drift — surface it, but don't flag it as a contradiction. Drift is when a decision or pattern accumulates without anyone noticing it crosses a strategy line.

Read the full file on GitHub · 56 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 4d ago First seen · 56 lines · 0 tokens per session scan A 462ca44d3699

Subscribe to this mod's changes

strategy-check is a command published in the GitHub repository phuryn/pm-brain (543 stars, last pushed 3mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 981 tokens. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.